[PATCH v4 07/10] lib: other kernel glue layer code
These files are used to provide the same function calls so that other
network stack code keeps untouched.
Signed-off-by: Hajime Tazaki
Signed-off-by: Christoph Paasch
---
arch/lib/capability.c | 25 +
arch/lib/filemap.c| 32 ++
arch/lib/fs.c | 70
arch/lib/glue.c | 289 ++
arch/lib/modules.c| 36 +++
arch/lib/pid.c| 29 +
arch/lib/print.c | 56 ++
arch/lib/proc.c | 34 ++
arch/lib/random.c | 53 +
arch/lib/sysfs.c | 83 +++
arch/lib/vmscan.c | 26 +
11 files changed, 733 insertions(+)
create mode 100644 arch/lib/capability.c
create mode 100644 arch/lib/filemap.c
create mode 100644 arch/lib/fs.c
create mode 100644 arch/lib/glue.c
create mode 100644 arch/lib/modules.c
create mode 100644 arch/lib/pid.c
create mode 100644 arch/lib/print.c
create mode 100644 arch/lib/proc.c
create mode 100644 arch/lib/random.c
create mode 100644 arch/lib/sysfs.c
create mode 100644 arch/lib/vmscan.c
diff --git a/arch/lib/capability.c b/arch/lib/capability.c
new file mode 100644
index 000..3a1f301
--- /dev/null
+++ b/arch/lib/capability.c
@@ -0,0 +1,25 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage
+ * Hajime Tazaki
+ */
+
+#include "linux/capability.h"
+
+struct sock;
+struct sk_buff;
+
+int file_caps_enabled = 0;
+
+int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
+{
+ return 0;
+}
+
+bool file_ns_capable(const struct file *file, struct user_namespace *ns,
+int cap)
+{
+ return true;
+}
diff --git a/arch/lib/filemap.c b/arch/lib/filemap.c
new file mode 100644
index 000..ce424ff
--- /dev/null
+++ b/arch/lib/filemap.c
@@ -0,0 +1,32 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage
+ * Hajime Tazaki
+ * Frederic Urbani
+ */
+
+#include "sim.h"
+#include "sim-assert.h"
+#include
+
+
+ssize_t generic_file_aio_read(struct kiocb *a, const struct iovec *b,
+ unsigned long c, loff_t d)
+{
+ lib_assert(false);
+
+ return 0;
+}
+
+int generic_file_readonly_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ return -ENOSYS;
+}
+
+ssize_t
+generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+{
+ return 0;
+}
diff --git a/arch/lib/fs.c b/arch/lib/fs.c
new file mode 100644
index 000..324e10b
--- /dev/null
+++ b/arch/lib/fs.c
@@ -0,0 +1,70 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage
+ * Hajime Tazaki
+ * Frederic Urbani
+ */
+
+#include
+
+#include "sim-assert.h"
+
+__cacheline_aligned_in_smp DEFINE_SEQLOCK(mount_lock);
+unsigned int dirtytime_expire_interval;
+
+void __init mnt_init(void)
+{
+}
+
+/* Implementation taken from vfs_kern_mount from linux/namespace.c */
+struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
+{
+ static struct mount local_mnt;
+ static int count = 0;
+ struct mount *mnt = _mnt;
+ struct dentry *root = 0;
+
+ /* XXX */
+ if (count != 0) return _mnt.mnt;
+ count++;
+
+ memset(mnt, 0, sizeof(struct mount));
+ if (!type)
+ return ERR_PTR(-ENODEV);
+ int flags = MS_KERNMOUNT;
+ char *name = (char *)type->name;
+
+ if (flags & MS_KERNMOUNT)
+ mnt->mnt.mnt_flags = MNT_INTERNAL;
+
+ root = type->mount(type, flags, name, data);
+ if (IS_ERR(root))
+ return ERR_CAST(root);
+
+ mnt->mnt.mnt_root = root;
+ mnt->mnt.mnt_sb = root->d_sb;
+ mnt->mnt_mountpoint = mnt->mnt.mnt_root;
+ mnt->mnt_parent = mnt;
+ /* DCE is monothreaded , so we do not care of lock here */
+ list_add_tail(>mnt_instance, >d_sb->s_mounts);
+
+ return >mnt;
+}
+void inode_wait_for_writeback(struct inode *inode)
+{
+}
+void truncate_inode_pages_final(struct address_space *mapping)
+{
+}
+int dirtytime_interval_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ return -ENOSYS;
+}
+
+unsigned int nr_free_buffer_pages(void)
+{
+ return 1024;
+}
diff --git a/arch/lib/glue.c b/arch/lib/glue.c
new file mode 100644
index 000..93f72d1
--- /dev/null
+++ b/arch/lib/glue.c
@@ -0,0 +1,289 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage
+ * Hajime Tazaki
+ * Frederic Urbani
+ */
+
+#include /* loff_t */
+#include /* ESPIPE */
+#include /* PAGE_CACHE_SIZE */
+#include/* NAME_MAX */
+#include/* struct kstatfs */
+#include /*
[PATCH v4 07/10] lib: other kernel glue layer code
These files are used to provide the same function calls so that other
network stack code keeps untouched.
Signed-off-by: Hajime Tazaki taz...@sfc.wide.ad.jp
Signed-off-by: Christoph Paasch christoph.paa...@gmail.com
---
arch/lib/capability.c | 25 +
arch/lib/filemap.c| 32 ++
arch/lib/fs.c | 70
arch/lib/glue.c | 289 ++
arch/lib/modules.c| 36 +++
arch/lib/pid.c| 29 +
arch/lib/print.c | 56 ++
arch/lib/proc.c | 34 ++
arch/lib/random.c | 53 +
arch/lib/sysfs.c | 83 +++
arch/lib/vmscan.c | 26 +
11 files changed, 733 insertions(+)
create mode 100644 arch/lib/capability.c
create mode 100644 arch/lib/filemap.c
create mode 100644 arch/lib/fs.c
create mode 100644 arch/lib/glue.c
create mode 100644 arch/lib/modules.c
create mode 100644 arch/lib/pid.c
create mode 100644 arch/lib/print.c
create mode 100644 arch/lib/proc.c
create mode 100644 arch/lib/random.c
create mode 100644 arch/lib/sysfs.c
create mode 100644 arch/lib/vmscan.c
diff --git a/arch/lib/capability.c b/arch/lib/capability.c
new file mode 100644
index 000..3a1f301
--- /dev/null
+++ b/arch/lib/capability.c
@@ -0,0 +1,25 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage mathieu.lac...@gmail.com
+ * Hajime Tazaki taz...@sfc.wide.ad.jp
+ */
+
+#include linux/capability.h
+
+struct sock;
+struct sk_buff;
+
+int file_caps_enabled = 0;
+
+int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
+{
+ return 0;
+}
+
+bool file_ns_capable(const struct file *file, struct user_namespace *ns,
+int cap)
+{
+ return true;
+}
diff --git a/arch/lib/filemap.c b/arch/lib/filemap.c
new file mode 100644
index 000..ce424ff
--- /dev/null
+++ b/arch/lib/filemap.c
@@ -0,0 +1,32 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage mathieu.lac...@gmail.com
+ * Hajime Tazaki taz...@sfc.wide.ad.jp
+ * Frederic Urbani
+ */
+
+#include sim.h
+#include sim-assert.h
+#include linux/fs.h
+
+
+ssize_t generic_file_aio_read(struct kiocb *a, const struct iovec *b,
+ unsigned long c, loff_t d)
+{
+ lib_assert(false);
+
+ return 0;
+}
+
+int generic_file_readonly_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ return -ENOSYS;
+}
+
+ssize_t
+generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+{
+ return 0;
+}
diff --git a/arch/lib/fs.c b/arch/lib/fs.c
new file mode 100644
index 000..324e10b
--- /dev/null
+++ b/arch/lib/fs.c
@@ -0,0 +1,70 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage mathieu.lac...@gmail.com
+ * Hajime Tazaki taz...@sfc.wide.ad.jp
+ * Frederic Urbani
+ */
+
+#include fs/mount.h
+
+#include sim-assert.h
+
+__cacheline_aligned_in_smp DEFINE_SEQLOCK(mount_lock);
+unsigned int dirtytime_expire_interval;
+
+void __init mnt_init(void)
+{
+}
+
+/* Implementation taken from vfs_kern_mount from linux/namespace.c */
+struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
+{
+ static struct mount local_mnt;
+ static int count = 0;
+ struct mount *mnt = local_mnt;
+ struct dentry *root = 0;
+
+ /* XXX */
+ if (count != 0) return local_mnt.mnt;
+ count++;
+
+ memset(mnt, 0, sizeof(struct mount));
+ if (!type)
+ return ERR_PTR(-ENODEV);
+ int flags = MS_KERNMOUNT;
+ char *name = (char *)type-name;
+
+ if (flags MS_KERNMOUNT)
+ mnt-mnt.mnt_flags = MNT_INTERNAL;
+
+ root = type-mount(type, flags, name, data);
+ if (IS_ERR(root))
+ return ERR_CAST(root);
+
+ mnt-mnt.mnt_root = root;
+ mnt-mnt.mnt_sb = root-d_sb;
+ mnt-mnt_mountpoint = mnt-mnt.mnt_root;
+ mnt-mnt_parent = mnt;
+ /* DCE is monothreaded , so we do not care of lock here */
+ list_add_tail(mnt-mnt_instance, root-d_sb-s_mounts);
+
+ return mnt-mnt;
+}
+void inode_wait_for_writeback(struct inode *inode)
+{
+}
+void truncate_inode_pages_final(struct address_space *mapping)
+{
+}
+int dirtytime_interval_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ return -ENOSYS;
+}
+
+unsigned int nr_free_buffer_pages(void)
+{
+ return 1024;
+}
diff --git a/arch/lib/glue.c b/arch/lib/glue.c
new file mode 100644
index 000..93f72d1
--- /dev/null
+++ b/arch/lib/glue.c
@@ -0,0 +1,289 @@
+/*
+ * glue code for library version of Linux kernel
+ * Copyright (c) 2015 INRIA, Hajime Tazaki
+ *
+ * Author: Mathieu Lacage mathieu.lac...@gmail.com
+ * Hajime Tazaki
